@StewartAylett Usually ISP provides modem/router to users and it is often free (comes included in Internet package price). Have you considered using ISP router? Answering your other question: does...

@Dancaw This TV has Ethernet port. The best solution would be to bring Satellite Deco close to TV and connect them both by Ethernet cable. Then, verify that TV uses Ethernet connection and if it does...

@Gwido Is it possible that one PC is connected by cable to ISP modem/router and another PC to Main or Satellite Deco? If not, where exactly are they connected?

@Pip60 On second thought, it appears you have two networks configured. I wish you wouldn't hide all useful info from your screenshot. If this is the network that you want to delete, follow this...

@Pip60 Follow this document, section Reset a Deco unit: How Do I Reboot or Reset My System?

@Pip60 It will not be in "Offline clients," that list is for devices connected to Deco mesh. I powered off one of my Deco M5, named Study, this is what I see in Deco app: Do you see your unplugged...